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Flashcards in Sedimentary Rocks Deck (74)
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1

Sedimentary rocks are formed from _____

sediment

2

What is sediment?

any broken-down crustal rock

3

Any rock that has been broken down into smaller pieces is called?

sediment

4

Where does sediment form?

at the surface where rock down

5

Can sediments be carried away?

yes

6

Sediments are carried away by the process of...

Erosion

7

What can carry away a sediment?

a river

8

A river can ____ ____ sediment

carried away

9

Once the rock is carried away it may be _____

deposited

10

_____ is the when a rock is deposited

deposition

11

What is deposition?

the process of sediment being deposited

12

When the sediment forms into solid rock again it can be called a ______ rock

sedimentary

13

The process of sediment being reconstituted into rock is..

lithification

14

______ is the process that takes deposited sediment and produces a whole rock

Lithification

15

Lithification reconstitutes _____ into ______

sediment, rock

16

When we say that rocks are lithified we mean that they are...

solidified

17

What are the three forms of sedimentary rocks?

- Clastic
- Chemical
- Biogenic

18

What are clastic rocks made of?

Clastic rocks are made up of broken-down fragments of rocks

19

How do we categorize clastic rocks?

according to the size of the sediments that they are made of

20

We categorize clastic rocks according to the size of their sediments or _____

clasts

21

_____ are the constituent fragments of clastic rocks

clasts

22

What are clasts?

The sediment of the clastic rock

23

A rock made up of gravel size sediment (chunks of rock) is called either a _____ or _____

Conglomerate, Breccia

24

If the grave-sized pieces of a clastic rock are rounded then it is...

Conglomerate

25

What is a Conglomerate rock?

a clastic rock that is made up of rounded gravel-size sediment

26

If the gravel-sized pieces of a clastic rock are angular then it is...

Breccia

27

Does Breccia have angular or rounded, gravel-sized sediment?

angular

28

If a rock is made up of sand-sized pieces we call it...

sandstone

29

Are Breccia and Conglomerate made up of gravel-sized or sand-sized pieces?

gravel-sized

30

If it is made up of silt-sized particles it is called a...

siltstone